56:1? That¡¯s kind of a weird ratio. 49:1 is easy, it¡¯s 7:1 turns ratio (impedance goes as the square of the turns ratio). 64:1 would be 8:1 turns.
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On Feb 21, 2024, at 7:47?AM, Andrew Harman <Nexus9d9@...> wrote:
?I've seen other kits which supply 130 ft with a 56:1. (and since you went with a heavy wire you are likely a little long on your trim yet) If its high enough a counterpoise isn't necessary - but grounding at entrance is recommended. (NPFA 70, article 800) The other option for a coil at the feed point is also sometimes used - but you knew that.
Andy